/** 
 * @param {Array} positions=[[114,30],[120,30]]
 * @param {Array} attr=[{type:"String",value:"武汉",name:"name"}]
 * @param {Object} service ={name:"IG服务名称",layerID:"要素所在的图层"}
 * @param {Object} positions=地图文档的图层
 * 
*/
const AREA_STYLE = {
    EndColor: 1,
    FillColor: 11,  // 填充色
    FillMode: 0,
    OutPenWidth: 1,
    OverMethod: 0,
    PatAngle: 1,
    PatColor: 1,
    PatHeight: 1,
    PatID: 0, // 图案编号
    PatWidth: 1
}

class Area {
    static add({
        positions,
        attr,
        service,
        docLayer
    }) {
        var pointObj = positions.map(item => {
            return new Zondy.Object.Point2D(item[0], item[1])
        })
        //设置区要素的几何信息
        var gArc = new Zondy.Object.Arc(pointObj);
        //构成区要素折线
        var gAnyLine = new Zondy.Object.AnyLine([gArc]);
        //构成区要素
        var gRegion = new Zondy.Object.GRegion([gAnyLine]);
        //构成区要素的几何信息
        var fGeom = new Zondy.Object.FeatureGeometry({ RegGeom: [gRegion] });

        //设置区要素的图形参数信息
        var cRegionInfo = new Zondy.Object.CRegionInfo(AREA_STYLE);
        //要素图形参数信息
        var graphicInfo = new Zondy.Object.WebGraphicsInfo({
            InfoType: 3,
            RegInfo: cRegionInfo
        });


        //设置区要素的属性信息
        var attValue = attr.map(item => item.value);

        //创建一个新的区要素
        var newFeature = new Zondy.Object.Feature({
            AttValue: attValue,
            fGeom: fGeom,
            GraphicInfo: graphicInfo
        });
        newFeature.setFType(3);

        // 2.构建要素集
        var featureSet = new Zondy.Object.FeatureSet();
        var fldNumber = attr.length;
        var fldType = attr.map(item => item.type)
        var fldName = attr.map(item => item.name)
        var cAttValue = new Zondy.Object.CAttStruct({
            FldNumber: fldNumber,
            FldType: fldType,
            FldName: fldName
        });
        featureSet.AttStruct = cAttValue;
        featureSet.addFeature(newFeature);

        // 3. 调用服务 执行添加
        //创建一个要素编辑服务对象
        var editDocFeature = new Zondy.Service.EditDocFeature(service.name, service.layerID, {

        });
        editDocFeature.add(featureSet, this.onPloySuccess(docLayer));
    }
    static onPloySuccess(docLayer) {
        return function (data) {
            if (data.succeed) {
                alert("添加面要素成功！");
                docLayer.refresh();
            } else {
                alert("添加面要素失败！");
            }
        }
    }
}